./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem15_label09.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/eca-rers2012/Problem15_label09.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '95fb3d5e08719276a2a944d13b687ec113a7e73312fed88b9ed459c7d3ad11df'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem15_label09.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 95fb3d5e08719276a2a944d13b687ec113a7e73312fed88b9ed459c7d3ad11df --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 19:55:12,152 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 19:55:12,240 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-06 19:55:12,251 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 19:55:12,252 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 19:55:12,279 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 19:55:12,281 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 19:55:12,281 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 19:55:12,282 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 19:55:12,283 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 19:55:12,283 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 19:55:12,283 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 19:55:12,283 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 19:55:12,284 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 19:55:12,284 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 19:55:12,285 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 19:55:12,285 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 19:55:12,285 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 19:55:12,285 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-06 19:55:12,285 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 19:55:12,285 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 19:55:12,285 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 19:55:12,286 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 19:55:12,286 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 19:55:12,286 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 19:55:12,286 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 19:55:12,286 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 19:55:12,286 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 19:55:12,287 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 19:55:12,287 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 19:55:12,287 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 19:55:12,287 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 19:55:12,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 19:55:12,288 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 19:55:12,288 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 19:55:12,288 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 19:55:12,288 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-06 19:55:12,289 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-06 19:55:12,289 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 19:55:12,289 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 19:55:12,289 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 19:55:12,289 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 19:55:12,289 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95fb3d5e08719276a2a944d13b687ec113a7e73312fed88b9ed459c7d3ad11df [2024-11-06 19:55:12,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 19:55:12,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 19:55:12,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 19:55:12,597 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 19:55:12,597 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 19:55:12,599 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem15_label09.c [2024-11-06 19:55:13,941 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 19:55:14,333 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 19:55:14,334 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label09.c [2024-11-06 19:55:14,353 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/604ec1a62/04bfb3806dff45f09b080611b1693231/FLAGcbdeb07c5 [2024-11-06 19:55:14,371 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/604ec1a62/04bfb3806dff45f09b080611b1693231 [2024-11-06 19:55:14,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 19:55:14,374 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 19:55:14,378 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 19:55:14,379 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 19:55:14,382 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 19:55:14,383 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:55:14" (1/1) ... [2024-11-06 19:55:14,384 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c0a4349 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:55:14, skipping insertion in model container [2024-11-06 19:55:14,384 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:55:14" (1/1) ... [2024-11-06 19:55:14,444 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 19:55:14,599 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label09.c[1166,1179] [2024-11-06 19:55:14,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 19:55:14,940 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 19:55:14,953 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label09.c[1166,1179] [2024-11-06 19:55:15,112 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 19:55:15,130 INFO L204 MainTranslator]: Completed translation [2024-11-06 19:55:15,130 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:55:15 WrapperNode [2024-11-06 19:55:15,130 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 19:55:15,131 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 19:55:15,131 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 19:55:15,131 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 19:55:15,135 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:55:15" (1/1) ... [2024-11-06 19:55:15,159 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:55:15" (1/1) ... [2024-11-06 19:55:15,351 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1760 [2024-11-06 19:55:15,351 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 19:55:15,352 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 19:55:15,352 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 19:55:15,353 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 19:55:15,362 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:55:15" (1/1) ... [2024-11-06 19:55:15,363 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:55:15" (1/1) ... [2024-11-06 19:55:15,391 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:55:15" (1/1) ... [2024-11-06 19:55:15,498 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-06 19:55:15,498 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:55:15" (1/1) ... [2024-11-06 19:55:15,499 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:55:15" (1/1) ... [2024-11-06 19:55:15,572 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:55:15" (1/1) ... [2024-11-06 19:55:15,587 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:55:15" (1/1) ... [2024-11-06 19:55:15,609 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:55:15" (1/1) ... [2024-11-06 19:55:15,621 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:55:15" (1/1) ... [2024-11-06 19:55:15,646 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 19:55:15,648 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 19:55:15,648 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 19:55:15,648 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 19:55:15,649 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:55:15" (1/1) ... [2024-11-06 19:55:15,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 19:55:15,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:55:15,678 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-06 19:55:15,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-06 19:55:15,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 19:55:15,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-06 19:55:15,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 19:55:15,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 19:55:15,795 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 19:55:15,796 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 19:55:18,319 INFO L? ?]: Removed 246 outVars from TransFormulas that were not future-live. [2024-11-06 19:55:18,320 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 19:55:18,347 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 19:55:18,351 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-06 19:55:18,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:55:18 BoogieIcfgContainer [2024-11-06 19:55:18,352 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 19:55:18,354 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 19:55:18,354 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 19:55:18,358 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 19:55:18,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:55:14" (1/3) ... [2024-11-06 19:55:18,359 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ed040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:55:18, skipping insertion in model container [2024-11-06 19:55:18,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:55:15" (2/3) ... [2024-11-06 19:55:18,359 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ed040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:55:18, skipping insertion in model container [2024-11-06 19:55:18,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:55:18" (3/3) ... [2024-11-06 19:55:18,361 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label09.c [2024-11-06 19:55:18,373 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 19:55:18,374 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 19:55:18,439 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 19:55:18,449 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@fab5643, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 19:55:18,451 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 19:55:18,459 INFO L276 IsEmpty]: Start isEmpty. Operand has 424 states, 422 states have (on average 1.7772511848341233) internal successors, (750), 423 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:18,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-06 19:55:18,464 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:55:18,465 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:55:18,466 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:55:18,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:55:18,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1810726993, now seen corresponding path program 1 times [2024-11-06 19:55:18,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:55:18,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781877424] [2024-11-06 19:55:18,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:55:18,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:55:18,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:55:18,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:55:18,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:55:18,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781877424] [2024-11-06 19:55:18,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781877424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:55:18,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:55:18,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:55:18,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236721854] [2024-11-06 19:55:18,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:55:18,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:55:18,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:55:18,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:55:18,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:55:18,707 INFO L87 Difference]: Start difference. First operand has 424 states, 422 states have (on average 1.7772511848341233) internal successors, (750), 423 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:20,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:55:20,328 INFO L93 Difference]: Finished difference Result 1155 states and 2106 transitions. [2024-11-06 19:55:20,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:55:20,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-06 19:55:20,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:55:20,343 INFO L225 Difference]: With dead ends: 1155 [2024-11-06 19:55:20,344 INFO L226 Difference]: Without dead ends: 667 [2024-11-06 19:55:20,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:55:20,349 INFO L432 NwaCegarLoop]: 329 mSDtfsCounter, 337 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 345 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 1244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 345 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-06 19:55:20,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 371 Invalid, 1244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [345 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-06 19:55:20,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2024-11-06 19:55:20,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 665. [2024-11-06 19:55:20,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 664 states have (on average 1.4789156626506024) internal successors, (982), 664 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:20,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 982 transitions. [2024-11-06 19:55:20,428 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 982 transitions. Word has length 7 [2024-11-06 19:55:20,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:55:20,428 INFO L471 AbstractCegarLoop]: Abstraction has 665 states and 982 transitions. [2024-11-06 19:55:20,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:20,428 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 982 transitions. [2024-11-06 19:55:20,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-06 19:55:20,430 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:55:20,430 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:55:20,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-06 19:55:20,430 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:55:20,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:55:20,431 INFO L85 PathProgramCache]: Analyzing trace with hash 529821143, now seen corresponding path program 1 times [2024-11-06 19:55:20,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:55:20,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873779187] [2024-11-06 19:55:20,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:55:20,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:55:20,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:55:20,725 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:55:20,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:55:20,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873779187] [2024-11-06 19:55:20,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873779187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:55:20,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:55:20,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:55:20,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836699294] [2024-11-06 19:55:20,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:55:20,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:55:20,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:55:20,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:55:20,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:55:20,732 INFO L87 Difference]: Start difference. First operand 665 states and 982 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:22,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:55:22,303 INFO L93 Difference]: Finished difference Result 1953 states and 2893 transitions. [2024-11-06 19:55:22,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:55:22,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-06 19:55:22,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:55:22,309 INFO L225 Difference]: With dead ends: 1953 [2024-11-06 19:55:22,309 INFO L226 Difference]: Without dead ends: 1290 [2024-11-06 19:55:22,310 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:55:22,311 INFO L432 NwaCegarLoop]: 288 mSDtfsCounter, 256 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 1249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-06 19:55:22,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 326 Invalid, 1249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-06 19:55:22,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1290 states. [2024-11-06 19:55:22,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1290 to 1282. [2024-11-06 19:55:22,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 1281 states have (on average 1.3981264637002342) internal successors, (1791), 1281 states have internal predecessors, (1791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:22,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 1791 transitions. [2024-11-06 19:55:22,346 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 1791 transitions. Word has length 82 [2024-11-06 19:55:22,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:55:22,347 INFO L471 AbstractCegarLoop]: Abstraction has 1282 states and 1791 transitions. [2024-11-06 19:55:22,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:22,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 1791 transitions. [2024-11-06 19:55:22,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-06 19:55:22,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:55:22,351 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:55:22,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-06 19:55:22,351 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:55:22,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:55:22,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1416661473, now seen corresponding path program 1 times [2024-11-06 19:55:22,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:55:22,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695584623] [2024-11-06 19:55:22,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:55:22,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:55:22,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:55:22,560 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:55:22,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:55:22,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695584623] [2024-11-06 19:55:22,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695584623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:55:22,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:55:22,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:55:22,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249218108] [2024-11-06 19:55:22,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:55:22,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:55:22,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:55:22,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:55:22,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:55:22,563 INFO L87 Difference]: Start difference. First operand 1282 states and 1791 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:24,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:55:24,628 INFO L93 Difference]: Finished difference Result 3764 states and 5260 transitions. [2024-11-06 19:55:24,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:55:24,629 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-11-06 19:55:24,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:55:24,639 INFO L225 Difference]: With dead ends: 3764 [2024-11-06 19:55:24,639 INFO L226 Difference]: Without dead ends: 2484 [2024-11-06 19:55:24,641 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:55:24,644 INFO L432 NwaCegarLoop]: 320 mSDtfsCounter, 236 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-06 19:55:24,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 366 Invalid, 1150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 955 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-06 19:55:24,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2484 states. [2024-11-06 19:55:24,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2484 to 2182. [2024-11-06 19:55:24,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2182 states, 2181 states have (on average 1.2810637322329206) internal successors, (2794), 2181 states have internal predecessors, (2794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:24,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2182 states to 2182 states and 2794 transitions. [2024-11-06 19:55:24,695 INFO L78 Accepts]: Start accepts. Automaton has 2182 states and 2794 transitions. Word has length 86 [2024-11-06 19:55:24,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:55:24,697 INFO L471 AbstractCegarLoop]: Abstraction has 2182 states and 2794 transitions. [2024-11-06 19:55:24,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:24,698 INFO L276 IsEmpty]: Start isEmpty. Operand 2182 states and 2794 transitions. [2024-11-06 19:55:24,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-06 19:55:24,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:55:24,707 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:55:24,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-06 19:55:24,707 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:55:24,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:55:24,708 INFO L85 PathProgramCache]: Analyzing trace with hash -556864980, now seen corresponding path program 1 times [2024-11-06 19:55:24,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:55:24,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176018542] [2024-11-06 19:55:24,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:55:24,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:55:24,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:55:24,983 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-06 19:55:24,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:55:24,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176018542] [2024-11-06 19:55:24,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176018542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:55:24,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:55:24,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:55:24,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575218457] [2024-11-06 19:55:24,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:55:24,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:55:24,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:55:24,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:55:24,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:55:24,985 INFO L87 Difference]: Start difference. First operand 2182 states and 2794 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:26,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:55:26,479 INFO L93 Difference]: Finished difference Result 6166 states and 7958 transitions. [2024-11-06 19:55:26,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:55:26,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 177 [2024-11-06 19:55:26,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:55:26,494 INFO L225 Difference]: With dead ends: 6166 [2024-11-06 19:55:26,494 INFO L226 Difference]: Without dead ends: 3986 [2024-11-06 19:55:26,498 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:55:26,499 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 257 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-06 19:55:26,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 339 Invalid, 1089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-06 19:55:26,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3986 states. [2024-11-06 19:55:26,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3986 to 3682. [2024-11-06 19:55:26,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3682 states, 3681 states have (on average 1.219505569138821) internal successors, (4489), 3681 states have internal predecessors, (4489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:26,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3682 states to 3682 states and 4489 transitions. [2024-11-06 19:55:26,576 INFO L78 Accepts]: Start accepts. Automaton has 3682 states and 4489 transitions. Word has length 177 [2024-11-06 19:55:26,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:55:26,577 INFO L471 AbstractCegarLoop]: Abstraction has 3682 states and 4489 transitions. [2024-11-06 19:55:26,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:26,577 INFO L276 IsEmpty]: Start isEmpty. Operand 3682 states and 4489 transitions. [2024-11-06 19:55:26,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2024-11-06 19:55:26,583 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:55:26,584 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:55:26,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-06 19:55:26,584 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:55:26,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:55:26,584 INFO L85 PathProgramCache]: Analyzing trace with hash -810037180, now seen corresponding path program 1 times [2024-11-06 19:55:26,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:55:26,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463351590] [2024-11-06 19:55:26,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:55:26,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:55:26,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:55:27,348 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-06 19:55:27,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:55:27,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463351590] [2024-11-06 19:55:27,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463351590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:55:27,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:55:27,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:55:27,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424296633] [2024-11-06 19:55:27,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:55:27,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:55:27,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:55:27,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:55:27,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:55:27,353 INFO L87 Difference]: Start difference. First operand 3682 states and 4489 transitions. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:28,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:55:28,554 INFO L93 Difference]: Finished difference Result 7661 states and 9287 transitions. [2024-11-06 19:55:28,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:55:28,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 279 [2024-11-06 19:55:28,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:55:28,566 INFO L225 Difference]: With dead ends: 7661 [2024-11-06 19:55:28,566 INFO L226 Difference]: Without dead ends: 3981 [2024-11-06 19:55:28,570 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:55:28,571 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 105 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-06 19:55:28,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 359 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-06 19:55:28,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3981 states. [2024-11-06 19:55:28,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3981 to 3981. [2024-11-06 19:55:28,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3981 states, 3980 states have (on average 1.2045226130653266) internal successors, (4794), 3980 states have internal predecessors, (4794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:28,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3981 states to 3981 states and 4794 transitions. [2024-11-06 19:55:28,657 INFO L78 Accepts]: Start accepts. Automaton has 3981 states and 4794 transitions. Word has length 279 [2024-11-06 19:55:28,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:55:28,657 INFO L471 AbstractCegarLoop]: Abstraction has 3981 states and 4794 transitions. [2024-11-06 19:55:28,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:28,658 INFO L276 IsEmpty]: Start isEmpty. Operand 3981 states and 4794 transitions. [2024-11-06 19:55:28,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2024-11-06 19:55:28,661 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:55:28,661 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:55:28,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-06 19:55:28,661 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:55:28,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:55:28,662 INFO L85 PathProgramCache]: Analyzing trace with hash 331374389, now seen corresponding path program 1 times [2024-11-06 19:55:28,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:55:28,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962187398] [2024-11-06 19:55:28,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:55:28,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:55:28,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:55:28,912 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-06 19:55:28,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:55:28,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962187398] [2024-11-06 19:55:28,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962187398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:55:28,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:55:28,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:55:28,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238170249] [2024-11-06 19:55:28,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:55:28,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:55:28,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:55:28,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:55:28,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:55:28,915 INFO L87 Difference]: Start difference. First operand 3981 states and 4794 transitions. Second operand has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:30,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:55:30,385 INFO L93 Difference]: Finished difference Result 8857 states and 10947 transitions. [2024-11-06 19:55:30,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:55:30,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 294 [2024-11-06 19:55:30,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:55:30,399 INFO L225 Difference]: With dead ends: 8857 [2024-11-06 19:55:30,399 INFO L226 Difference]: Without dead ends: 5177 [2024-11-06 19:55:30,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:55:30,405 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 308 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-06 19:55:30,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 322 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 908 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-06 19:55:30,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5177 states. [2024-11-06 19:55:30,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5177 to 3379. [2024-11-06 19:55:30,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3379 states, 3378 states have (on average 1.226169330965068) internal successors, (4142), 3378 states have internal predecessors, (4142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:30,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3379 states to 3379 states and 4142 transitions. [2024-11-06 19:55:30,470 INFO L78 Accepts]: Start accepts. Automaton has 3379 states and 4142 transitions. Word has length 294 [2024-11-06 19:55:30,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:55:30,470 INFO L471 AbstractCegarLoop]: Abstraction has 3379 states and 4142 transitions. [2024-11-06 19:55:30,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:30,470 INFO L276 IsEmpty]: Start isEmpty. Operand 3379 states and 4142 transitions. [2024-11-06 19:55:30,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2024-11-06 19:55:30,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:55:30,475 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:55:30,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-06 19:55:30,475 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:55:30,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:55:30,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1112560626, now seen corresponding path program 1 times [2024-11-06 19:55:30,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:55:30,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227709551] [2024-11-06 19:55:30,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:55:30,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:55:30,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:55:30,810 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-06 19:55:30,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:55:30,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227709551] [2024-11-06 19:55:30,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227709551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:55:30,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:55:30,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:55:30,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752569826] [2024-11-06 19:55:30,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:55:30,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:55:30,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:55:30,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:55:30,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:55:30,814 INFO L87 Difference]: Start difference. First operand 3379 states and 4142 transitions. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:32,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:55:32,077 INFO L93 Difference]: Finished difference Result 8260 states and 10358 transitions. [2024-11-06 19:55:32,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:55:32,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 353 [2024-11-06 19:55:32,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:55:32,091 INFO L225 Difference]: With dead ends: 8260 [2024-11-06 19:55:32,091 INFO L226 Difference]: Without dead ends: 5182 [2024-11-06 19:55:32,095 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:55:32,095 INFO L432 NwaCegarLoop]: 600 mSDtfsCounter, 321 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-06 19:55:32,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 637 Invalid, 1123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-06 19:55:32,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5182 states. [2024-11-06 19:55:32,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5182 to 4883. [2024-11-06 19:55:32,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4883 states, 4882 states have (on average 1.1798443260958624) internal successors, (5760), 4882 states have internal predecessors, (5760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:32,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4883 states to 4883 states and 5760 transitions. [2024-11-06 19:55:32,197 INFO L78 Accepts]: Start accepts. Automaton has 4883 states and 5760 transitions. Word has length 353 [2024-11-06 19:55:32,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:55:32,198 INFO L471 AbstractCegarLoop]: Abstraction has 4883 states and 5760 transitions. [2024-11-06 19:55:32,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:32,198 INFO L276 IsEmpty]: Start isEmpty. Operand 4883 states and 5760 transitions. [2024-11-06 19:55:32,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2024-11-06 19:55:32,203 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:55:32,203 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:55:32,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-06 19:55:32,204 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:55:32,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:55:32,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1437215774, now seen corresponding path program 1 times [2024-11-06 19:55:32,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:55:32,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455532217] [2024-11-06 19:55:32,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:55:32,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:55:32,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:55:32,568 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:55:32,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:55:32,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455532217] [2024-11-06 19:55:32,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455532217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:55:32,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:55:32,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:55:32,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927053254] [2024-11-06 19:55:32,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:55:32,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:55:32,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:55:32,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:55:32,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:55:32,571 INFO L87 Difference]: Start difference. First operand 4883 states and 5760 transitions. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:33,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:55:33,791 INFO L93 Difference]: Finished difference Result 11270 states and 13601 transitions. [2024-11-06 19:55:33,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:55:33,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 359 [2024-11-06 19:55:33,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:55:33,805 INFO L225 Difference]: With dead ends: 11270 [2024-11-06 19:55:33,805 INFO L226 Difference]: Without dead ends: 6688 [2024-11-06 19:55:33,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:55:33,809 INFO L432 NwaCegarLoop]: 564 mSDtfsCounter, 248 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 1127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-06 19:55:33,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 603 Invalid, 1127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-06 19:55:33,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6688 states. [2024-11-06 19:55:33,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6688 to 6087. [2024-11-06 19:55:33,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6087 states, 6086 states have (on average 1.1625041077883667) internal successors, (7075), 6086 states have internal predecessors, (7075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:33,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6087 states to 6087 states and 7075 transitions. [2024-11-06 19:55:33,877 INFO L78 Accepts]: Start accepts. Automaton has 6087 states and 7075 transitions. Word has length 359 [2024-11-06 19:55:33,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:55:33,877 INFO L471 AbstractCegarLoop]: Abstraction has 6087 states and 7075 transitions. [2024-11-06 19:55:33,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:33,878 INFO L276 IsEmpty]: Start isEmpty. Operand 6087 states and 7075 transitions. [2024-11-06 19:55:33,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2024-11-06 19:55:33,883 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:55:33,883 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:55:33,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-06 19:55:33,884 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:55:33,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:55:33,884 INFO L85 PathProgramCache]: Analyzing trace with hash 2003955781, now seen corresponding path program 1 times [2024-11-06 19:55:33,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:55:33,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250197814] [2024-11-06 19:55:33,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:55:33,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:55:33,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:55:34,178 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-06 19:55:34,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:55:34,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250197814] [2024-11-06 19:55:34,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250197814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:55:34,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:55:34,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:55:34,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512101463] [2024-11-06 19:55:34,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:55:34,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:55:34,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:55:34,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:55:34,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:55:34,182 INFO L87 Difference]: Start difference. First operand 6087 states and 7075 transitions. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:35,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:55:35,362 INFO L93 Difference]: Finished difference Result 13667 states and 16218 transitions. [2024-11-06 19:55:35,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:55:35,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 376 [2024-11-06 19:55:35,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:55:35,377 INFO L225 Difference]: With dead ends: 13667 [2024-11-06 19:55:35,377 INFO L226 Difference]: Without dead ends: 7881 [2024-11-06 19:55:35,382 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:55:35,382 INFO L432 NwaCegarLoop]: 579 mSDtfsCounter, 248 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 1122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-06 19:55:35,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 617 Invalid, 1122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 880 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-06 19:55:35,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7881 states. [2024-11-06 19:55:35,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7881 to 7877. [2024-11-06 19:55:35,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7877 states, 7876 states have (on average 1.1452513966480447) internal successors, (9020), 7876 states have internal predecessors, (9020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:35,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7877 states to 7877 states and 9020 transitions. [2024-11-06 19:55:35,469 INFO L78 Accepts]: Start accepts. Automaton has 7877 states and 9020 transitions. Word has length 376 [2024-11-06 19:55:35,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:55:35,470 INFO L471 AbstractCegarLoop]: Abstraction has 7877 states and 9020 transitions. [2024-11-06 19:55:35,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:35,471 INFO L276 IsEmpty]: Start isEmpty. Operand 7877 states and 9020 transitions. [2024-11-06 19:55:35,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2024-11-06 19:55:35,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:55:35,475 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:55:35,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-06 19:55:35,476 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:55:35,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:55:35,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1484714728, now seen corresponding path program 1 times [2024-11-06 19:55:35,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:55:35,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695843527] [2024-11-06 19:55:35,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:55:35,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:55:35,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:55:36,100 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 5 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:55:36,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:55:36,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695843527] [2024-11-06 19:55:36,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695843527] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:55:36,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868315749] [2024-11-06 19:55:36,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:55:36,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:55:36,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:55:36,104 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 19:55:36,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-06 19:55:36,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:55:36,310 INFO L255 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 19:55:36,322 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:55:37,919 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-06 19:55:37,919 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:55:37,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868315749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:55:37,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:55:37,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-06 19:55:37,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869818958] [2024-11-06 19:55:37,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:55:37,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:55:37,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:55:37,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:55:37,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-06 19:55:37,921 INFO L87 Difference]: Start difference. First operand 7877 states and 9020 transitions. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:39,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:55:39,704 INFO L93 Difference]: Finished difference Result 20243 states and 23276 transitions. [2024-11-06 19:55:39,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:55:39,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 384 [2024-11-06 19:55:39,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:55:39,728 INFO L225 Difference]: With dead ends: 20243 [2024-11-06 19:55:39,728 INFO L226 Difference]: Without dead ends: 12667 [2024-11-06 19:55:39,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-06 19:55:39,738 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 375 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 991 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 1179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-06 19:55:39,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 178 Invalid, 1179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 991 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-06 19:55:39,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12667 states. [2024-11-06 19:55:39,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12667 to 10571. [2024-11-06 19:55:39,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10571 states, 10570 states have (on average 1.1496688741721854) internal successors, (12152), 10570 states have internal predecessors, (12152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:39,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10571 states to 10571 states and 12152 transitions. [2024-11-06 19:55:39,850 INFO L78 Accepts]: Start accepts. Automaton has 10571 states and 12152 transitions. Word has length 384 [2024-11-06 19:55:39,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:55:39,851 INFO L471 AbstractCegarLoop]: Abstraction has 10571 states and 12152 transitions. [2024-11-06 19:55:39,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:39,851 INFO L276 IsEmpty]: Start isEmpty. Operand 10571 states and 12152 transitions. [2024-11-06 19:55:39,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2024-11-06 19:55:39,855 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:55:39,855 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:55:39,873 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-06 19:55:40,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-06 19:55:40,057 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:55:40,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:55:40,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1226112300, now seen corresponding path program 1 times [2024-11-06 19:55:40,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:55:40,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727878277] [2024-11-06 19:55:40,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:55:40,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:55:40,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:55:40,499 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-11-06 19:55:40,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:55:40,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727878277] [2024-11-06 19:55:40,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727878277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:55:40,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:55:40,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:55:40,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161199812] [2024-11-06 19:55:40,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:55:40,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:55:40,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:55:40,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:55:40,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:55:40,501 INFO L87 Difference]: Start difference. First operand 10571 states and 12152 transitions. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:41,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:55:41,965 INFO L93 Difference]: Finished difference Result 26239 states and 30433 transitions. [2024-11-06 19:55:41,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:55:41,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 495 [2024-11-06 19:55:41,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:55:42,003 INFO L225 Difference]: With dead ends: 26239 [2024-11-06 19:55:42,003 INFO L226 Difference]: Without dead ends: 15969 [2024-11-06 19:55:42,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:55:42,015 INFO L432 NwaCegarLoop]: 587 mSDtfsCounter, 246 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 1209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-06 19:55:42,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 620 Invalid, 1209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-06 19:55:42,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15969 states. [2024-11-06 19:55:42,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15969 to 15358. [2024-11-06 19:55:42,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15358 states, 15357 states have (on average 1.137396626945367) internal successors, (17467), 15357 states have internal predecessors, (17467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:42,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15358 states to 15358 states and 17467 transitions. [2024-11-06 19:55:42,217 INFO L78 Accepts]: Start accepts. Automaton has 15358 states and 17467 transitions. Word has length 495 [2024-11-06 19:55:42,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:55:42,217 INFO L471 AbstractCegarLoop]: Abstraction has 15358 states and 17467 transitions. [2024-11-06 19:55:42,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:42,218 INFO L276 IsEmpty]: Start isEmpty. Operand 15358 states and 17467 transitions. [2024-11-06 19:55:42,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2024-11-06 19:55:42,223 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:55:42,223 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:55:42,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-06 19:55:42,223 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:55:42,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:55:42,224 INFO L85 PathProgramCache]: Analyzing trace with hash -74530961, now seen corresponding path program 1 times [2024-11-06 19:55:42,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:55:42,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049792286] [2024-11-06 19:55:42,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:55:42,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:55:42,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:55:42,489 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2024-11-06 19:55:42,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:55:42,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049792286] [2024-11-06 19:55:42,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049792286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:55:42,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:55:42,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:55:42,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852250865] [2024-11-06 19:55:42,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:55:42,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:55:42,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:55:42,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:55:42,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:55:42,491 INFO L87 Difference]: Start difference. First operand 15358 states and 17467 transitions. Second operand has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:43,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:55:43,726 INFO L93 Difference]: Finished difference Result 30711 states and 34965 transitions. [2024-11-06 19:55:43,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:55:43,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 508 [2024-11-06 19:55:43,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:55:43,742 INFO L225 Difference]: With dead ends: 30711 [2024-11-06 19:55:43,742 INFO L226 Difference]: Without dead ends: 15654 [2024-11-06 19:55:43,756 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:55:43,756 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 465 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 1035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-06 19:55:43,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 71 Invalid, 1035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-06 19:55:43,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15654 states. [2024-11-06 19:55:43,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15654 to 15354. [2024-11-06 19:55:43,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15354 states, 15353 states have (on average 1.1372370220803751) internal successors, (17460), 15353 states have internal predecessors, (17460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:43,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15354 states to 15354 states and 17460 transitions. [2024-11-06 19:55:43,918 INFO L78 Accepts]: Start accepts. Automaton has 15354 states and 17460 transitions. Word has length 508 [2024-11-06 19:55:43,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:55:43,919 INFO L471 AbstractCegarLoop]: Abstraction has 15354 states and 17460 transitions. [2024-11-06 19:55:43,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:43,920 INFO L276 IsEmpty]: Start isEmpty. Operand 15354 states and 17460 transitions. [2024-11-06 19:55:43,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2024-11-06 19:55:43,925 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:55:43,927 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:55:43,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-06 19:55:43,928 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:55:43,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:55:43,928 INFO L85 PathProgramCache]: Analyzing trace with hash -286172638, now seen corresponding path program 1 times [2024-11-06 19:55:43,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:55:43,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005991315] [2024-11-06 19:55:43,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:55:43,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:55:44,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:55:44,197 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 241 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-06 19:55:44,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:55:44,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005991315] [2024-11-06 19:55:44,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005991315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:55:44,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:55:44,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:55:44,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392580450] [2024-11-06 19:55:44,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:55:44,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:55:44,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:55:44,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:55:44,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:55:44,200 INFO L87 Difference]: Start difference. First operand 15354 states and 17460 transitions. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:45,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:55:45,209 INFO L93 Difference]: Finished difference Result 32201 states and 36660 transitions. [2024-11-06 19:55:45,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:55:45,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 528 [2024-11-06 19:55:45,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:55:45,224 INFO L225 Difference]: With dead ends: 32201 [2024-11-06 19:55:45,224 INFO L226 Difference]: Without dead ends: 17148 [2024-11-06 19:55:45,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:55:45,235 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 266 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-06 19:55:45,235 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 331 Invalid, 983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-06 19:55:45,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17148 states. [2024-11-06 19:55:45,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17148 to 13258. [2024-11-06 19:55:45,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13258 states, 13257 states have (on average 1.1475446933695406) internal successors, (15213), 13257 states have internal predecessors, (15213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:45,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13258 states to 13258 states and 15213 transitions. [2024-11-06 19:55:45,377 INFO L78 Accepts]: Start accepts. Automaton has 13258 states and 15213 transitions. Word has length 528 [2024-11-06 19:55:45,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:55:45,378 INFO L471 AbstractCegarLoop]: Abstraction has 13258 states and 15213 transitions. [2024-11-06 19:55:45,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:45,378 INFO L276 IsEmpty]: Start isEmpty. Operand 13258 states and 15213 transitions. [2024-11-06 19:55:45,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2024-11-06 19:55:45,384 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:55:45,385 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:55:45,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-06 19:55:45,385 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:55:45,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:55:45,386 INFO L85 PathProgramCache]: Analyzing trace with hash -327948239, now seen corresponding path program 1 times [2024-11-06 19:55:45,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:55:45,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997552944] [2024-11-06 19:55:45,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:55:45,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:55:45,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:55:46,401 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 168 proven. 188 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-06 19:55:46,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:55:46,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997552944] [2024-11-06 19:55:46,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997552944] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:55:46,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860740826] [2024-11-06 19:55:46,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:55:46,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:55:46,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:55:46,405 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 19:55:46,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-06 19:55:46,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:55:46,591 INFO L255 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 19:55:46,597 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:55:46,659 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2024-11-06 19:55:46,659 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:55:46,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [860740826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:55:46,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:55:46,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-06 19:55:46,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666969947] [2024-11-06 19:55:46,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:55:46,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:55:46,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:55:46,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:55:46,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-06 19:55:46,661 INFO L87 Difference]: Start difference. First operand 13258 states and 15213 transitions. Second operand has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:48,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:55:48,308 INFO L93 Difference]: Finished difference Result 34061 states and 39557 transitions. [2024-11-06 19:55:48,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:55:48,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 548 [2024-11-06 19:55:48,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:55:48,336 INFO L225 Difference]: With dead ends: 34061 [2024-11-06 19:55:48,336 INFO L226 Difference]: Without dead ends: 21104 [2024-11-06 19:55:48,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 551 GetRequests, 547 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-06 19:55:48,348 INFO L432 NwaCegarLoop]: 643 mSDtfsCounter, 406 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 1153 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 1212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-06 19:55:48,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 708 Invalid, 1212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1153 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-06 19:55:48,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21104 states. [2024-11-06 19:55:48,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21104 to 21096. [2024-11-06 19:55:48,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21096 states, 21095 states have (on average 1.1462905901872482) internal successors, (24181), 21095 states have internal predecessors, (24181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:48,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21096 states to 21096 states and 24181 transitions. [2024-11-06 19:55:48,560 INFO L78 Accepts]: Start accepts. Automaton has 21096 states and 24181 transitions. Word has length 548 [2024-11-06 19:55:48,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:55:48,561 INFO L471 AbstractCegarLoop]: Abstraction has 21096 states and 24181 transitions. [2024-11-06 19:55:48,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:48,561 INFO L276 IsEmpty]: Start isEmpty. Operand 21096 states and 24181 transitions. [2024-11-06 19:55:48,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 570 [2024-11-06 19:55:48,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:55:48,569 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:55:48,586 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-06 19:55:48,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:55:48,770 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:55:48,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:55:48,771 INFO L85 PathProgramCache]: Analyzing trace with hash -96205427, now seen corresponding path program 1 times [2024-11-06 19:55:48,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:55:48,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006171641] [2024-11-06 19:55:48,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:55:48,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:55:48,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:55:49,228 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-06 19:55:49,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:55:49,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006171641] [2024-11-06 19:55:49,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006171641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:55:49,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:55:49,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:55:49,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360151279] [2024-11-06 19:55:49,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:55:49,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:55:49,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:55:49,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:55:49,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:55:49,231 INFO L87 Difference]: Start difference. First operand 21096 states and 24181 transitions. Second operand has 3 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:50,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:55:50,422 INFO L93 Difference]: Finished difference Result 54758 states and 63156 transitions. [2024-11-06 19:55:50,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:55:50,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 569 [2024-11-06 19:55:50,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:55:50,450 INFO L225 Difference]: With dead ends: 54758 [2024-11-06 19:55:50,450 INFO L226 Difference]: Without dead ends: 30375 [2024-11-06 19:55:50,469 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:55:50,469 INFO L432 NwaCegarLoop]: 493 mSDtfsCounter, 179 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 308 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 1158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 308 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-06 19:55:50,469 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 524 Invalid, 1158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [308 Valid, 850 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-06 19:55:50,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30375 states. [2024-11-06 19:55:50,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30375 to 28878. [2024-11-06 19:55:50,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28878 states, 28877 states have (on average 1.0834574228624858) internal successors, (31287), 28877 states have internal predecessors, (31287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:50,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28878 states to 28878 states and 31287 transitions. [2024-11-06 19:55:50,708 INFO L78 Accepts]: Start accepts. Automaton has 28878 states and 31287 transitions. Word has length 569 [2024-11-06 19:55:50,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:55:50,708 INFO L471 AbstractCegarLoop]: Abstraction has 28878 states and 31287 transitions. [2024-11-06 19:55:50,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:50,708 INFO L276 IsEmpty]: Start isEmpty. Operand 28878 states and 31287 transitions. [2024-11-06 19:55:50,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 638 [2024-11-06 19:55:50,764 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:55:50,765 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:55:50,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-06 19:55:50,765 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:55:50,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:55:50,766 INFO L85 PathProgramCache]: Analyzing trace with hash -222133737, now seen corresponding path program 1 times [2024-11-06 19:55:50,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:55:50,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648104299] [2024-11-06 19:55:50,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:55:50,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:55:50,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:55:51,030 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 463 trivial. 0 not checked. [2024-11-06 19:55:51,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:55:51,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648104299] [2024-11-06 19:55:51,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648104299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:55:51,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:55:51,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:55:51,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360634500] [2024-11-06 19:55:51,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:55:51,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:55:51,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:55:51,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:55:51,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:55:51,031 INFO L87 Difference]: Start difference. First operand 28878 states and 31287 transitions. Second operand has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:52,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:55:52,087 INFO L93 Difference]: Finished difference Result 65219 states and 70622 transitions. [2024-11-06 19:55:52,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:55:52,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 637 [2024-11-06 19:55:52,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:55:52,120 INFO L225 Difference]: With dead ends: 65219 [2024-11-06 19:55:52,120 INFO L226 Difference]: Without dead ends: 34549 [2024-11-06 19:55:52,131 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:55:52,131 INFO L432 NwaCegarLoop]: 503 mSDtfsCounter, 316 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-06 19:55:52,131 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 545 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-06 19:55:52,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34549 states. [2024-11-06 19:55:52,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34549 to 26464. [2024-11-06 19:55:52,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26464 states, 26463 states have (on average 1.0747458715943015) internal successors, (28441), 26463 states have internal predecessors, (28441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:52,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26464 states to 26464 states and 28441 transitions. [2024-11-06 19:55:52,426 INFO L78 Accepts]: Start accepts. Automaton has 26464 states and 28441 transitions. Word has length 637 [2024-11-06 19:55:52,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:55:52,426 INFO L471 AbstractCegarLoop]: Abstraction has 26464 states and 28441 transitions. [2024-11-06 19:55:52,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:55:52,427 INFO L276 IsEmpty]: Start isEmpty. Operand 26464 states and 28441 transitions. [2024-11-06 19:55:52,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 680 [2024-11-06 19:55:52,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:55:52,438 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:55:52,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-06 19:55:52,439 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:55:52,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:55:52,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1122432443, now seen corresponding path program 1 times [2024-11-06 19:55:52,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:55:52,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813653049] [2024-11-06 19:55:52,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:55:52,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:55:52,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:55:53,785 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 91 proven. 405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:55:53,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:55:53,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813653049] [2024-11-06 19:55:53,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813653049] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:55:53,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264867225] [2024-11-06 19:55:53,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:55:53,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:55:53,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:55:53,788 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 19:55:53,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-06 19:55:53,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:55:53,974 INFO L255 TraceCheckSpWp]: Trace formula consists of 803 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-06 19:55:53,981 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:55:56,226 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 385 proven. 5 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-06 19:55:56,227 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 19:55:58,922 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 385 proven. 5 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-06 19:55:58,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264867225] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 19:55:58,923 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-06 19:55:58,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 15 [2024-11-06 19:55:58,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240600725] [2024-11-06 19:55:58,923 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-06 19:55:58,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-06 19:55:58,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:55:58,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-06 19:55:58,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2024-11-06 19:55:58,926 INFO L87 Difference]: Start difference. First operand 26464 states and 28441 transitions. Second operand has 15 states, 15 states have (on average 98.4) internal successors, (1476), 15 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:13,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:56:13,052 INFO L93 Difference]: Finished difference Result 109335 states and 116686 transitions. [2024-11-06 19:56:13,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2024-11-06 19:56:13,053 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 98.4) internal successors, (1476), 15 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 679 [2024-11-06 19:56:13,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:56:13,121 INFO L225 Difference]: With dead ends: 109335 [2024-11-06 19:56:13,121 INFO L226 Difference]: Without dead ends: 82570 [2024-11-06 19:56:13,147 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1464 GetRequests, 1388 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2195 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1189, Invalid=4817, Unknown=0, NotChecked=0, Total=6006 [2024-11-06 19:56:13,147 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 8184 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 19935 mSolverCounterSat, 2992 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8184 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 22927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2992 IncrementalHoareTripleChecker+Valid, 19935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2024-11-06 19:56:13,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8184 Valid, 513 Invalid, 22927 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2992 Valid, 19935 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2024-11-06 19:56:13,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82570 states. [2024-11-06 19:56:13,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82570 to 31538. [2024-11-06 19:56:13,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31538 states, 31537 states have (on average 1.0637980784475378) internal successors, (33549), 31537 states have internal predecessors, (33549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:13,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31538 states to 31538 states and 33549 transitions. [2024-11-06 19:56:13,645 INFO L78 Accepts]: Start accepts. Automaton has 31538 states and 33549 transitions. Word has length 679 [2024-11-06 19:56:13,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:56:13,645 INFO L471 AbstractCegarLoop]: Abstraction has 31538 states and 33549 transitions. [2024-11-06 19:56:13,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 98.4) internal successors, (1476), 15 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:13,646 INFO L276 IsEmpty]: Start isEmpty. Operand 31538 states and 33549 transitions. [2024-11-06 19:56:13,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 759 [2024-11-06 19:56:13,653 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:56:13,654 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:56:13,666 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-06 19:56:13,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:56:13,854 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:56:13,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:56:13,855 INFO L85 PathProgramCache]: Analyzing trace with hash -924374487, now seen corresponding path program 1 times [2024-11-06 19:56:13,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:56:13,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289191834] [2024-11-06 19:56:13,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:56:13,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:56:13,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:56:14,454 INFO L134 CoverageAnalysis]: Checked inductivity of 878 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 859 trivial. 0 not checked. [2024-11-06 19:56:14,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:56:14,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289191834] [2024-11-06 19:56:14,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289191834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:56:14,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:56:14,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:56:14,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457010319] [2024-11-06 19:56:14,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:56:14,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:56:14,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:56:14,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:56:14,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:14,457 INFO L87 Difference]: Start difference. First operand 31538 states and 33549 transitions. Second operand has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:15,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:56:15,440 INFO L93 Difference]: Finished difference Result 62172 states and 66158 transitions. [2024-11-06 19:56:15,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:56:15,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 758 [2024-11-06 19:56:15,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:56:15,464 INFO L225 Difference]: With dead ends: 62172 [2024-11-06 19:56:15,464 INFO L226 Difference]: Without dead ends: 30636 [2024-11-06 19:56:15,480 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:15,481 INFO L432 NwaCegarLoop]: 487 mSDtfsCounter, 319 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-06 19:56:15,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 523 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 783 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-06 19:56:15,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30636 states. [2024-11-06 19:56:15,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30636 to 29141. [2024-11-06 19:56:15,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29141 states, 29140 states have (on average 1.0399450926561427) internal successors, (30304), 29140 states have internal predecessors, (30304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:15,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29141 states to 29141 states and 30304 transitions. [2024-11-06 19:56:15,769 INFO L78 Accepts]: Start accepts. Automaton has 29141 states and 30304 transitions. Word has length 758 [2024-11-06 19:56:15,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:56:15,769 INFO L471 AbstractCegarLoop]: Abstraction has 29141 states and 30304 transitions. [2024-11-06 19:56:15,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:15,769 INFO L276 IsEmpty]: Start isEmpty. Operand 29141 states and 30304 transitions. [2024-11-06 19:56:15,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 778 [2024-11-06 19:56:15,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:56:15,779 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:56:15,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-06 19:56:15,779 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:56:15,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:56:15,780 INFO L85 PathProgramCache]: Analyzing trace with hash -387839410, now seen corresponding path program 1 times [2024-11-06 19:56:15,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:56:15,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106150296] [2024-11-06 19:56:15,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:56:15,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:56:15,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:56:16,335 INFO L134 CoverageAnalysis]: Checked inductivity of 863 backedges. 511 proven. 0 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2024-11-06 19:56:16,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:56:16,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106150296] [2024-11-06 19:56:16,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106150296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:56:16,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:56:16,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:56:16,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995800642] [2024-11-06 19:56:16,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:56:16,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:56:16,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:56:16,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:56:16,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:16,338 INFO L87 Difference]: Start difference. First operand 29141 states and 30304 transitions. Second operand has 3 states, 3 states have (on average 169.0) internal successors, (507), 3 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:17,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:56:17,384 INFO L93 Difference]: Finished difference Result 60984 states and 63434 transitions. [2024-11-06 19:56:17,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:56:17,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 169.0) internal successors, (507), 3 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 777 [2024-11-06 19:56:17,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:56:17,414 INFO L225 Difference]: With dead ends: 60984 [2024-11-06 19:56:17,414 INFO L226 Difference]: Without dead ends: 32144 [2024-11-06 19:56:17,430 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:17,430 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 345 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-06 19:56:17,430 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 141 Invalid, 981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-06 19:56:17,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32144 states. [2024-11-06 19:56:17,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32144 to 29135. [2024-11-06 19:56:17,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29135 states, 29134 states have (on average 1.038854946111073) internal successors, (30266), 29134 states have internal predecessors, (30266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:17,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29135 states to 29135 states and 30266 transitions. [2024-11-06 19:56:17,654 INFO L78 Accepts]: Start accepts. Automaton has 29135 states and 30266 transitions. Word has length 777 [2024-11-06 19:56:17,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:56:17,654 INFO L471 AbstractCegarLoop]: Abstraction has 29135 states and 30266 transitions. [2024-11-06 19:56:17,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 169.0) internal successors, (507), 3 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:17,654 INFO L276 IsEmpty]: Start isEmpty. Operand 29135 states and 30266 transitions. [2024-11-06 19:56:17,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2024-11-06 19:56:17,663 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:56:17,663 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:56:17,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-06 19:56:17,663 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:56:17,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:56:17,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1413031866, now seen corresponding path program 1 times [2024-11-06 19:56:17,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:56:17,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376445324] [2024-11-06 19:56:17,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:56:17,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:56:17,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:56:18,209 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 531 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2024-11-06 19:56:18,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:56:18,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376445324] [2024-11-06 19:56:18,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376445324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:56:18,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:56:18,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:56:18,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509590788] [2024-11-06 19:56:18,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:56:18,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:56:18,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:56:18,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:56:18,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:18,213 INFO L87 Difference]: Start difference. First operand 29135 states and 30266 transitions. Second operand has 3 states, 3 states have (on average 169.66666666666666) internal successors, (509), 3 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:19,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:56:19,110 INFO L93 Difference]: Finished difference Result 63674 states and 66169 transitions. [2024-11-06 19:56:19,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:56:19,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 169.66666666666666) internal successors, (509), 3 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 790 [2024-11-06 19:56:19,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:56:19,141 INFO L225 Difference]: With dead ends: 63674 [2024-11-06 19:56:19,141 INFO L226 Difference]: Without dead ends: 34840 [2024-11-06 19:56:19,158 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:19,159 INFO L432 NwaCegarLoop]: 507 mSDtfsCounter, 98 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 786 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-06 19:56:19,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 549 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 786 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-06 19:56:19,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34840 states. [2024-11-06 19:56:19,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34840 to 33039. [2024-11-06 19:56:19,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33039 states, 33038 states have (on average 1.0364126157757734) internal successors, (34241), 33038 states have internal predecessors, (34241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:19,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33039 states to 33039 states and 34241 transitions. [2024-11-06 19:56:19,539 INFO L78 Accepts]: Start accepts. Automaton has 33039 states and 34241 transitions. Word has length 790 [2024-11-06 19:56:19,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:56:19,540 INFO L471 AbstractCegarLoop]: Abstraction has 33039 states and 34241 transitions. [2024-11-06 19:56:19,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 169.66666666666666) internal successors, (509), 3 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:19,540 INFO L276 IsEmpty]: Start isEmpty. Operand 33039 states and 34241 transitions. [2024-11-06 19:56:19,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 814 [2024-11-06 19:56:19,555 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:56:19,555 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:56:19,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-06 19:56:19,556 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:56:19,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:56:19,556 INFO L85 PathProgramCache]: Analyzing trace with hash 799034529, now seen corresponding path program 1 times [2024-11-06 19:56:19,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:56:19,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762639117] [2024-11-06 19:56:19,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:56:19,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:56:19,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:56:20,159 INFO L134 CoverageAnalysis]: Checked inductivity of 892 backedges. 553 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2024-11-06 19:56:20,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:56:20,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762639117] [2024-11-06 19:56:20,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762639117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:56:20,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:56:20,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:56:20,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006387] [2024-11-06 19:56:20,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:56:20,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:56:20,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:56:20,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:56:20,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:20,162 INFO L87 Difference]: Start difference. First operand 33039 states and 34241 transitions. Second operand has 3 states, 3 states have (on average 183.66666666666666) internal successors, (551), 3 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:21,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:56:21,070 INFO L93 Difference]: Finished difference Result 65773 states and 68158 transitions. [2024-11-06 19:56:21,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:56:21,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 183.66666666666666) internal successors, (551), 3 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 813 [2024-11-06 19:56:21,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:56:21,107 INFO L225 Difference]: With dead ends: 65773 [2024-11-06 19:56:21,107 INFO L226 Difference]: Without dead ends: 33035 [2024-11-06 19:56:21,127 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:21,128 INFO L432 NwaCegarLoop]: 489 mSDtfsCounter, 55 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-06 19:56:21,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 525 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-06 19:56:21,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33035 states. [2024-11-06 19:56:21,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33035 to 28827. [2024-11-06 19:56:21,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28827 states, 28826 states have (on average 1.0347255949490044) internal successors, (29827), 28826 states have internal predecessors, (29827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:21,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28827 states to 28827 states and 29827 transitions. [2024-11-06 19:56:21,498 INFO L78 Accepts]: Start accepts. Automaton has 28827 states and 29827 transitions. Word has length 813 [2024-11-06 19:56:21,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:56:21,499 INFO L471 AbstractCegarLoop]: Abstraction has 28827 states and 29827 transitions. [2024-11-06 19:56:21,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.66666666666666) internal successors, (551), 3 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:21,499 INFO L276 IsEmpty]: Start isEmpty. Operand 28827 states and 29827 transitions. [2024-11-06 19:56:21,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 836 [2024-11-06 19:56:21,508 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:56:21,509 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:56:21,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-06 19:56:21,509 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:56:21,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:56:21,509 INFO L85 PathProgramCache]: Analyzing trace with hash 895913238, now seen corresponding path program 1 times [2024-11-06 19:56:21,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:56:21,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772020940] [2024-11-06 19:56:21,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:56:21,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:56:21,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:56:22,512 INFO L134 CoverageAnalysis]: Checked inductivity of 904 backedges. 626 proven. 188 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-06 19:56:22,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:56:22,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772020940] [2024-11-06 19:56:22,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772020940] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:56:22,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738106603] [2024-11-06 19:56:22,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:56:22,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:56:22,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:56:22,515 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 19:56:22,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-06 19:56:22,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:56:22,723 INFO L255 TraceCheckSpWp]: Trace formula consists of 975 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-06 19:56:22,731 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:56:23,972 INFO L134 CoverageAnalysis]: Checked inductivity of 904 backedges. 626 proven. 188 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-06 19:56:23,972 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 19:56:27,246 INFO L134 CoverageAnalysis]: Checked inductivity of 904 backedges. 626 proven. 188 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-06 19:56:27,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738106603] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 19:56:27,246 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-06 19:56:27,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-06 19:56:27,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999728655] [2024-11-06 19:56:27,247 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-06 19:56:27,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-06 19:56:27,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:56:27,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-06 19:56:27,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-06 19:56:27,250 INFO L87 Difference]: Start difference. First operand 28827 states and 29827 transitions. Second operand has 9 states, 9 states have (on average 178.88888888888889) internal successors, (1610), 8 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)